Freezing Temperature Field of FSPR under Different Pipe Configurations: A Case Study in Gongbei Tunnel, China

Table 8

Temperature data at measurement point 50 mm above the contour line in Configurations B and C.

Measuring point	T0 (°C)	T21 (°C)	V (°C/h)	Time of temperature below freezing point (h)
14	22.1	−7.6	−1.41	10
20	22.2	−7.5	−1.41	11
26	22.6	−7.3	−1.42	11
m2^∗	22.2	−5	−1.30	12
v2^∗	19.2	−4.8	−1.14	12